Thomas Aquinas

Second, he sets out the declaration of this: and they, his scouts, told the house of David, that is, the royal house, saying: Syria has rested upon Ephraim, that is, the king of Syria with the king of the ten tribes, which are called Ephraim, because of their first king, who belonged to the tribe of Ephraim (1 Kings 13) or because of honor; they were joined in friendship although they were formerly enemies, as is read in 1 Kings 22. …

Commentary on Isaiah ↗